Drawing table



@st. 14, 1924. 11,511,626 P. MARINO DiuwINe TABLE Filed Jan. 30. 1923 2Sheets-Sheet 1 nnllllllllll P. MARINO DRAWING TABLE Filed Jan. 50, 19232 Sheets-Sheet 2,

INVENTOR ATTORNEY Patented Get... 14, 1224..

PASQUALE MARINO, OF HARRISON, NEW JERSEY.

DRAWING TABLE.

Application filed January 30, 1923. Serial No. 615,783.

To all whom it may concern.

Be it known that l, PASQUALE MARINo, a subject of the King of Italy, andresident of town of Harrison, county of Hudson, State of New Jersey,have invented certain new and useful Improvements in Drawing Tables, ofwhich the following is the speciiication.

The device, the subject of this invention and which I term a drawingtable, is, in reality a drafting machine, wherein the pens or pencilsused are mechanically retained andmechanically manipulated over thesurface of the table. The table upon which the paper is secured may alsobe manipulated.

The objects of the invention then, are to produce a drafting table uponwhich accurate work may be expeditiously executed and wherein difficultwork may be accomplished, without the requirement of exceptional skill,necessary in the use of hand pens and pencils and individual squares,angles and so forth.

Another object of the invention is to pro duce a drafting table, soconstructed that fine adjustments may be quickly and readilyaccomplished and may be accurately duplicated and a still further objectof the 11k vention is to provide means for reducing the time requiredfor the execution of a drawing, by retaining the tools and devicesrequired in the execution, always in operable position and in conditionto be readily operated.

With these objects in mind, the following is what I consider the bestmeans for carrying out my invention and the accompa nying drawingsshould be referred to for a complete understanding of the specificationwhich follows.

In the drawings a Fig. 1, is a front elevation, partly in section of mymachine.

Fig. 2, a fractional front elevation of the part removed from Fig. 1. D

Fig. 3, a sectional view of the table and support therefor. a

Fig. 4, a top plan view.

Fig. 5, a sectional, plan view, the section being taken on the line 5 5in Fig.1.

Fig. 6, is a perspective view on an enlarged scale of the pen and pencilholding device, and

Fig. 7, is an enlarged view of the pen supporting means. 1

Similar reference numerals indicate like parts in all the figures wherethey appear.

At 10 and 11in Fig. 1, I show supports for my device. There are foursuch supports, these supports being posts of wood or metal connected bymeans of suitable braces, such as are shown at 12. The braces 12 maysupport the main or tool table 13. I call this member a tool table, forupon it will probably be, placed additional devices, when. not in use.

Upon each brace I arrange an adjustable leg as shown at 14, each legbeing adapted to operate a co-acting bar, as shown at 15 and 16 andthebars converging inward to a common center are secured in the T- shapedmember 17.

Passing through this T-shaped member 17 is a tubular member 18, fittedwith a rack 19 and the rack 19 and member 16 may be adjusted verticallyby means of a spur gear 20, operated by a handle 2-1.

The upper end of the tubular member 18 is flanged as shown at 22 andsecured there to is a supporting member 23, provided with an annularball race 24 and upon the member 23 is a rotatable member 25, thisrotatable member being secured to a. rod 26, which passes into the tube18 and is rotatable with the member 25,

On the inclined edge 26 of the member 25, I arrange a scale, which maybea protractor scale and upon the non-rotatable main supporting member 23,a pointer 27 may be secured, which will project over the protractorscale, to assist in the setting of the rotatable member 25 to anydegree, in relation to parts not yet described.

Adjustably secured upon the disk of member 25 is a drawing boardsupport, which may be a frame formed of four bars as shown at 29, 30, 31and 32 in Fig. 5, the drawing board 33 being received in the frame orbetween the bars 29 to 32 inclusive. Means are provided for moving thedrawing board, the means consisting of spur gears operating oversuitable tracks, the gears be ing operated by the knobs 34, 35, 36 and37 the object of this adjustment beingto provide means for causing anypart of the drawing board to becentered under the pen or pencil in use.

Between the uprights 10-10 and 11-11, I secure racks as shown at 38, 39,40 and 11 and upwardly projecting side plates are provided for all ofthe racks, one being secured to each side 10f each rack as shown at l2and &8. Q

Operable upon each rack is a spur gear, the spur gears being shown atgel, 45,, 4:6 and 47, these spur gears being secured in pairs uponsuitable shafts and the shafts extending throughthe tubular members asshown at 48 and 49. Gltwill be noted from Fig. 6, that the tubularmembers pass, one above the other, both members and their shaftsContinuing the block 50, which supports a channel 51, wherein pens andpencils 52, 53 and 54 are sec'ured. The pens and pencils are movaib lein the-channel 51, so that anyone of said devices may be:broughtdirectly under the center of theblock The main tool holdingmeans is a rod 56,

passing through a tube, secured in the-channel51 and to which a tool 55may be secured. For a reason that shall be later set forth, the'rod 56should be longitudinally movable through the channel =51. i 1

' call attention to the fact that a flexible shaft is connected to eachmovable part of my device and that each-flexible shaft terminates inahand operated dial plate at the front of an machine and toggle oints asshown at 57 are interposed in the flexible shaft, so that the movementof-the parts may not be restricted. As shown indlig'. i, aflexible-shaft 58 anddial 59 controls the inovenien'tof-the shaft Withinthe tube 48;

" the'tog gle 60, the flexible shaft61 and the dia'l 62",eontrols themovement of the spur gears 45 and 5L6; the toggle 63, flexible shaft 6eand dial '65'controls the movement of the screw-threadedshaft 66, andwhich may be supported in adjustable" blocks 67,

upon the from frame member. These blocks are adjustable by meansofscrews 68 and 69 passing throu gh brackets 70 and '71. 1 A traveller72, upon the shaft 6.6 maybe temporarily placed upon the squared end .67

of the shaft which controls the gears 44 and A p 47 and by means ofthiss'crewthreaded shaft 66 and its co-operati-ng parts, an exceedinglydelicate movement of the gears t i and'? may be accompjhshed, a movementwhich is particularly advantageous in cross-hatching j and drawingparallellines, which are requiredto be very close-together; "It will ofcourse be understood that a simiiar fine adjusting means, such as theshaft 66 and parts copperating therewith may also be adapted so as tooperate the gears45 and i6.

"Upon the rod 56 of the tool 55, I place a lever =56 which is'providedwith a pin 48'. Upon-this pin I arrange a helical gear 48 and itw'ill beunderstood that as the gear A25 is caused totravel onthe rack arrangedonthe shaft- 48 that the tool 55 will be lifted' and depresse the spring55 acting as the' 'depressing means. This ope-ration is controlled by afoot edal 78 and spring 79.

This device is inten ed for raising the pen .or pencil away fromzthesurface of the paper when it is desired to change the position of thepaper and this control may be ioperated with the tool supporting meansshown in Fig. '6.

In Figs. 1 aud t, I show an additional .bar 80 operable by gears 81 and82 upon the racks 38 and 41. Uponzthis bar I support a typewriter s3 and1 provide means :such as a rack and pinion shown at 84: in Fig. 1 forlifting the typewriter away from the drawing board. The bar 80 forsupporting the typewriter may be arranged so as to operate upon thetracks 39 and t0, ifdesimed.

' In Figs. 1 and l, I show meters :85 and 86 which will indicate theamount ,Of travel of the toolsupponting member 50.

The operation of my device can probably be fully understood from theforegoing description. I will, however, briefly describe the generalprinciple of the operation, referring to the parts by the referencecharacters applied thereto.

A sheet of paper being placed upon the table 33, this table is adjusteduntil at the proper height. The pen or pencil to be used iscentered inits supporting channel 51 and the point adjusted. For drawing straightlines, the point from which the line is to start is placed .under thepencil by moving the table, ,by manipulatingthe knobs 34 and 37inclusive. If the lint 11 be drawn is in the direction of either of thearrows A, the dial 652 .is turned, which will cause the gears 45 and 46to move-the block 50 in the desired direction. If the line .to be drawnis in the direction .of the arrow B, the dial 5.9 is operated.

To draw circles, a point on the circumference of the circle is placedunder the point of th pen or penci and the table is rotated.

For extremely quick work, such cilling where overmm -'l ines are notalways objectionable, the flexible shafts 58. and 61 may be disconnectedand the blockhf) moved by hand, the hand r sting-on the projection '63,shown extending upwardly from the block 50. It will be noted that block50 may be moved readily aipon the tubes 9:8 and 49 extendingtherethrough. The or guides arranged adjacent the 38 to 41 inclusiveassure that the :block 59 will always move a straight iline.

The scales shown on the frame members 29 to 32 inclusive,-are usetu linpositioning the tool employed.

IOU

The flexible shaft 64 or in fact any of the shafts may be provided Witha telescopic part formed therein as shown at 64 in Figure 2, such a partis advantageous in the shaft 64 allowing this shaft to be extended Whenadjustment is made by means of the screw 68 and 69. I

Parts may be used Without the Whole and modification may be made Withinthe scope of the appended claims Without departing from the principle onsacrificing the advantages of this invention.

Having carefully and fully described my invention, What I claim anddesire to ob tain is 1. A drafting table and means for sup porting it,said supporting means extending above said table, racks in pairs securedto said supporting means and means operable upon each set of racks formoving a marking device.

2. A drafting table and means for supporting a marking device above saidtable, said means comprising a plurality of mechanically operatedtubular members arranged at right angles to each other, said markingdevice supporting means being adapted to move freely upon one saidtubular member! when impelled by the other said tubular member.

8. A drafting table and means for supporting a marking device above saidtable, said means comprising a plurality of mechanically operatedtubular members arranged at right angles to each other, said supportingmeans being adapted to slide freely upon one said tubular member by therotalLlOll of the other said tubular member and means associated Witheach said tubular member for impelling said supporting member, saidmeans comprising flexible shafts and hand operated dials for rotatingsaid shafts.

4. A drafting table and means for supporting a marking device above saidtable, said means comprising a plurality of mechanically operatedtubular members arranged at right angles to each other, said supportingmeans being adapted to move freely upon one said tubular member When theother said tubular member is rotated and means associated With each saidtubular member for impelling said supporting member, said meanscomprising flexible shafts and hand operated dials for rotating saidshafts and a common support for all said dials.

5. A drafting table comprising a base member having adjustable means forlevelling it, a table rotatably mounted upon said base member, a drawingboard and means for adjusting it in relation to said table and aninstrument support above said table and adapted to be moved over saidtable.

6. A drafting table having a tool support comprising a chamiel memberand a plurality of tools adjustably arranged in said channel member andmeans for moving said channel member over the surface of the board, saidmeans comprising a plurality of transversely arranged supports for saidtool holder and means for moving said tool holder upon said transversesupports.

'7'. A drafting table having a tool support comprising a channel memberand a plurality of tools adjustably arranged in said channel member andmeans for moving said channel member over the surface of the board, saidmeans comprising a plurality of transversely arranged supports for saidtool holder and means for moving said tool holder upon said transversesupport, said last mentioned means comprising racks, gears thereon,shafts connecting said gears and means for rotating said shafts.

8. A drafting instrument having a board and means for supporting a toolover said board, said tool supporting means comprising a movable member,a thimble arranged therein, a tool movable in said thimble and a footoperated means for moving said tool in one direction.

9. A drafting instrument having a board and means for supporting a toolover said board, said tool supporting means comprising a movable member,a thimble arranged therein, a tool movable in said thimble and a footoperated means for moving said tool in one direction and resilient meansfor moving said tool in the opposite direction.

10. A drawing table and means for supporting a tool over said drawingtable, said means comprising an adjustable tool holder,

a too-l supported therein and means fort reciprocating said tool tocause said tool to intermittently contact With the surface of saidtable.

Signed at the city, county and State of New York, this 23rd day ofJanuary, 192-3.

PASQUALE MARINO.

